在急性细胞拒绝之后,人类肺部异构移植经历了持续的纤维化转变
Andrew S Potter1, Nirmal S Sharma2, Yasufumi Goda2
1The Heart Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH.
概括
肺移植中的急性细胞排斥 (ACR) 涉及到持续的TGF-β和mTOR通路激活,将ACR与慢性肺全移植功能障碍 (CLAD) 联系起来. 针对这些途径可能会预防CLAD.
科学领域:
- 免疫学 免疫学 免疫学
- 基因组学就是基因组学.
- 移植生物学 移植生物学
背景情况:
- 急性细胞排斥 (ACR) 是肺移植的主要障碍.
- 将ACR与慢性肺异位移植功能障碍 (CLAD) 联系起来的分子途径尚未完全理解.
研究的目的:
- 为了研究肺移植中ACR的细胞和分子机制.
- 确定预防CLAD的潜在治疗点.
主要方法:
- 从ACR,已解决的ACR和对照患者的肺活检的单细胞RNA测序 (scRNA-seq).
- 使用基因微阵列,免疫光和单细胞ATAC-seq.进行验证.
主要成果:
- 在ACR和已解决的ACR中观察到的TGF-β和PI3K/AKT/mTOR信号通路的持续激活.
- 纤维细胞显示了肌纤维细胞的特征,而不是表皮或内皮转移到介质细胞.
- 在内皮/基底细胞中增加II型干扰素信号和JAK/STAT通路激活;减少VE-Cadherin.
- 改变了免疫细胞组成,细胞毒性T细胞增加,记忆T细胞,树突细胞,减少了自然杀手细胞.
结论:
- 在ACR解析后的持续TGF-β和mTOR通路激活为ACR-CLAD链接提供了洞察力.
- mTOR抑制和TGF-β阻塞是预防CLAD的潜在治疗策略.
关键词:
急性细胞排斥 细胞排斥细胞地图是细胞地图.慢性肺部异位移植功能障碍 慢性肺部异位移植功能障碍从捐赠者获得的细胞.干扰素信号传输的信号.肺移植是什么意思?自然杀手细胞是自然杀手细胞.一个单细胞RNA测序.更多相关视频
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